Printer cartridge



FIG. 1 is a bottom, front perspective view of a printer cartridge showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a right side elevational view thereof.

The broken lines of items in FIGS. 1-6 are for purposes of illustration only, and form no part of the claimed design. 

The ornamental design for a printer cartridge, as shown and described. 